/* СдалВсё.рф editorial system: warm paper, quiet structure, one brand accent. */
:root {
  --sv-ink: #263432;
  --sv-ink-strong: #1f2c2b;
  --sv-copy: #5f6b68;
  --sv-muted: #7e8885;
  --sv-accent: #0b8f8a;
  --sv-accent-strong: #08706d;
  --sv-accent-pale: #e4f2f0;
  --sv-blue-pale: #edf2f1;
  --sv-canvas: #fbfaf7;
  --sv-paper: #fffefd;
  --sv-line: #e4e0da;
  --sv-line-strong: #d8d3cb;
  --sv-navy: #263432;
  --sv-radius: 20px;
  --sv-shadow: 0 1px 2px rgba(28, 40, 38, .04), 0 10px 28px rgba(28, 40, 38, .045);
}

body.sv-shell {
  background: var(--sv-canvas);
  color: var(--sv-copy);
  font-size: 16px;
  line-height: 1.65;
  letter-spacing: .004em;
}

.sv-header {
  border-color: rgba(216, 211, 203, .85);
  background: rgba(251, 250, 247, .94);
  backdrop-filter: blur(16px);
}
.sv-header.scrolled { background: rgba(255, 254, 253, .97); box-shadow: 0 8px 24px rgba(38, 52, 50, .05); }
.sv-header-row { min-height: 74px; }
.sv-logo { width: 176px; }
.sv-desktop-nav > a { color: #64706d; font-size: 13px; }
.sv-desktop-nav > a:hover,
.sv-desktop-nav > a:focus-visible,
.sv-desktop-nav > a.is-current { background: #efede8; color: var(--sv-ink-strong); }
.sv-header-cta,
.sv-button { border-radius: 999px; }
.sv-header-cta { border-color: var(--sv-ink-strong); background: var(--sv-ink-strong); font-weight: 500; }
.sv-header-cta:hover { background: #334442; }

.sv-language { position: relative; }
.sv-language summary {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--sv-line-strong);
  border-radius: 999px;
  background: var(--sv-paper);
  color: var(--sv-ink);
  font-size: 11px;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
}
.sv-language summary::-webkit-details-marker { display: none; }
.sv-language[open] summary { border-color: var(--sv-accent); box-shadow: 0 0 0 3px rgba(11, 143, 138, .1); }
.sv-language-menu {
  position: absolute;
  top: calc(100% + 10px);
  right: 0;
  z-index: 40;
  width: 190px;
  padding: 7px;
  border: 1px solid var(--sv-line);
  border-radius: 16px;
  background: var(--sv-paper);
  box-shadow: var(--sv-shadow);
}
.sv-language-menu a {
  display: flex;
  min-height: 42px;
  align-items: center;
  justify-content: space-between;
  padding: 0 11px;
  border-radius: 10px;
  color: var(--sv-copy);
  font-size: 13px;
}
.sv-language-menu a:hover,
.sv-language-menu a.is-current { background: #f1efeb; color: var(--sv-ink-strong); }
.sv-language-menu small { color: var(--sv-muted); font-size: 10px; }

.sv-menu-panel { background: rgba(255, 254, 253, .99); box-shadow: 0 22px 52px rgba(38, 52, 50, .08); }
.sv-menu-primary a:hover { background: #f4f1ec; }

.sv-hero { padding-top: 76px; background: var(--sv-canvas); }
.sv-hero::before { border-color: rgba(11, 143, 138, .045); }
.sv-hero h1,
.sv-section-head h2,
.sv-service-intro h2,
.sv-regions-intro h2,
.sv-contact-copy h2,
.sv-faq-layout h2,
.sv-page-hero h1,
.student-tools-page .stw-hero-copy h1 {
  color: var(--sv-ink-strong);
  font-weight: 400;
  letter-spacing: -.04em;
}
.sv-hero h1 { font-size: clamp(52px, 5vw, 72px); line-height: 1.01; }
.sv-hero h1 em { color: var(--sv-accent-strong); }
.sv-hero-lead { color: var(--sv-copy); font-size: 18px; line-height: 1.62; }
.sv-button { min-height: 48px; padding-inline: 22px; font-weight: 500; }
.sv-button-primary { background: var(--sv-ink-strong); }
.sv-button-primary:hover { background: #334442; }
.sv-button-secondary { background: var(--sv-paper); }
.sv-route-board { border-color: var(--sv-line); background: var(--sv-paper); box-shadow: var(--sv-shadow); }
.sv-route,
.sv-route-main,
.sv-route-human { border-color: var(--sv-line); background: transparent; }
.sv-route-main { background: #edf4f2; }
.sv-route-human { background: #f2efea; }
.sv-route:hover { border-color: #bfcac6; background: var(--sv-paper); box-shadow: none; }
.sv-scope-line { border-color: var(--sv-line); letter-spacing: .045em; }

.sv-problem,
.sv-services-preview,
.sv-proof,
.sv-faq { padding-block: clamp(82px, 9vw, 118px); }
.sv-problem,
.sv-proof { border-top: 1px solid var(--sv-line); background: var(--sv-paper); }
.sv-services-preview,
.sv-faq { border-top: 1px solid var(--sv-line); background: var(--sv-canvas); }
.sv-section-head { margin-bottom: 44px; }
.sv-section-head h2,
.sv-regions-intro h2,
.sv-faq-layout h2 { font-size: clamp(39px, 4.2vw, 57px); }
.sv-tool-feature { border: 0; background: #e7f2ef; }
.sv-tool-feature::after { border-color: rgba(11, 143, 138, .08); }
.sv-tool-label { border-color: rgba(8, 112, 109, .18); border-radius: 999px; }
.sv-tool-stack > a { border-color: var(--sv-line); background: #f6f3ee; }
.sv-tool-stack > a:hover { border-color: #c9c3ba; background: var(--sv-paper); }
.sv-tool-footer { border-color: var(--sv-line); }
.sv-tool-footer a { background: var(--sv-paper); }

.sv-service-story {
  padding-block: clamp(88px, 9vw, 116px);
  border-top: 1px solid var(--sv-line);
  background: #f2efea;
  color: var(--sv-copy);
}
.sv-service-story::after { border-color: rgba(11, 143, 138, .045); }
.sv-service-intro h2,
.sv-service-story .sv-process strong { color: var(--sv-ink-strong); }
.sv-service-intro > p:not(.sv-eyebrow),
.sv-service-story .sv-process p { color: var(--sv-copy); }
.sv-service-story .sv-process li { border-color: var(--sv-line-strong); }
.sv-service-story .sv-process li:last-child { border-color: var(--sv-line-strong); }
.sv-service-story .sv-process li > span { color: var(--sv-accent-strong); }
.sv-service-story .sv-button-white { background: var(--sv-ink-strong); color: #fff; }
.sv-service-story .sv-inline-link { color: var(--sv-ink); }
.sv-service-story .sv-inline-link:hover { color: var(--sv-accent-strong); }
.sv-service-list > a:hover { background: #f3f0eb; }
.sv-online-study { border: 0; background: #e8f2ef; }
.sv-regions { border-top: 1px solid var(--sv-line); background: #f2efea; }
.sv-contact { background: var(--sv-ink-strong); }

.sv-page-hero,
.student-tools-page .stw-hero { border-color: var(--sv-line); background: var(--sv-canvas); }
.sv-price-catalog,
.sv-how-price,
.student-tools-page .stw-workbench { background: var(--sv-paper); }
.sv-tests,
.student-tools-page .stw-next { background: #f2efea; }
.sv-order-form-shell,
.student-tools-page .stw-tool-grid { background: #f2efea; }
.sv-order-form-shell,
.student-tools-page .stw-panel,
.student-tools-page .stw-tool-grid { border-color: var(--sv-line); }
.sv-order-form input[type="text"],
.sv-order-form select,
.sv-order-form textarea,
.student-tools-page .input,
.student-tools-page .select,
.student-tools-page .textarea { border-radius: 14px; background: var(--sv-paper); }

.student-tools-page .stw-hero-grid { align-items: center; }
.student-tools-page .stw-hero-copy h1 { max-width: 680px; font-size: clamp(48px, 5.2vw, 70px); line-height: 1.02; }
.student-tools-page .stw-jump-nav { grid-template-columns: repeat(6, 1fr); border-radius: 20px; }
.student-tools-page .stw-jump-nav a { min-height: 104px; padding: 17px; border: 0; border-right: 1px solid var(--sv-line); border-bottom: 0; }
.student-tools-page .stw-jump-nav a:nth-child(odd) { border-right: 1px solid var(--sv-line); }
.student-tools-page .stw-jump-nav a:nth-child(-n+3) { grid-column: span 2; border-bottom: 1px solid var(--sv-line); }
.student-tools-page .stw-jump-nav .stw-jump-external { grid-column: span 3; background: #f4f1ec; }
.student-tools-page .stw-jump-nav a:hover,
.student-tools-page .stw-jump-nav a.is-active { background: #e9f3f0; }
.student-tools-page .stw-layout { grid-template-columns: 240px minmax(0, 1fr); gap: 42px; }
.student-tools-page .stw-sidebar { top: 100px; gap: 5px; padding: 0 20px 0 0; border: 0; border-right: 1px solid var(--sv-line); }
.student-tools-page .stw-sidebar a { min-height: 44px; padding: 10px 12px; border-radius: 12px; }
.student-tools-page .stw-sidebar a:hover,
.student-tools-page .stw-sidebar a.is-active { background: #edf4f2; color: var(--sv-ink-strong); }
.student-tools-page .stw-modules { min-height: 630px; }
.student-tools-page .stw-module[hidden] { display: none; }
.student-tools-page .stw-module { animation: sv-tool-panel-in 220ms var(--sv-ease-out) both; }
.student-tools-page .stw-module-head { margin-bottom: 22px; }
.student-tools-page .stw-tool-grid { gap: 1px; padding: 0; overflow: hidden; border-radius: 20px; }
.student-tools-page .stw-panel { border: 0; border-radius: 0; padding: 30px; }
.student-tools-page .stw-result { border-left: 1px solid var(--sv-line); background: #faf8f4; }
.student-tools-page .btn { border-radius: 999px; background: var(--sv-ink-strong); }
@keyframes sv-tool-panel-in { from { opacity: 0; transform: translateY(8px); } }

.sv-community { border: 1px solid var(--sv-line); background: var(--sv-paper); color: var(--sv-copy); box-shadow: 0 22px 70px rgba(38, 52, 50, .16); }
.sv-community::before { background: #edf4f2; }
.sv-community h2,
.sv-community strong { color: var(--sv-ink-strong); }
.sv-community-tag { color: var(--sv-accent-strong); }

@media (max-width: 1180px) {
  .sv-header-row { grid-template-columns: 165px minmax(0,1fr) auto; gap: 16px; }
  .sv-logo { width: 160px; }
  .sv-desktop-nav > a { padding-inline: 9px; font-size: 12px; }
  .sv-header-contact { display: none; }
}

@media (max-width: 960px) {
  .sv-language { margin-left: auto; }
  .student-tools-page .stw-jump-nav { grid-template-columns: repeat(6, 1fr); }
  .student-tools-page .stw-layout { grid-template-columns: 1fr; }
  .student-tools-page .stw-sidebar { position: static; display: grid; grid-template-columns: repeat(3,1fr); padding: 0 0 18px; border-right: 0; border-bottom: 1px solid var(--sv-line); }
  .student-tools-page .stw-sidebar strong,
  .student-tools-page .stw-sidebar span { grid-column: 1 / -1; }
}

@media (max-width: 720px) {
  body.nav-open { overflow: hidden; }
  .sv-menu-panel { background: #fffefd; }
  .sv-shell .container { width: min(var(--sv-max), calc(100% - 32px)); }
  .sv-header-row { grid-template-columns: 1fr auto; min-height: 64px; }
  .sv-logo { width: 130px; }
  .sv-language summary { width: 40px; height: 40px; }
  .sv-language-menu { position: fixed; top: 70px; right: 12px; }
  .sv-hero { padding-top: 38px; }
  .sv-hero h1 { font-size: clamp(38px, 11vw, 49px); }
  .sv-problem,
  .sv-services-preview,
  .sv-proof,
  .sv-faq { padding-block: 72px; }
  .sv-service-story { padding-block: 72px; }
  .student-tools-page .stw-hero-copy h1 { font-size: clamp(40px, 11.5vw, 52px); }
  .student-tools-page .stw-jump-nav { grid-template-columns: 1fr; }
  .student-tools-page .stw-jump-nav a,
  .student-tools-page .stw-jump-nav a:nth-child(-n+3),
  .student-tools-page .stw-jump-nav .stw-jump-external { grid-column: auto; min-height: 76px; border-right: 0; border-bottom: 1px solid var(--sv-line); }
  .student-tools-page .stw-sidebar { display: flex; overflow-x: auto; flex-wrap: nowrap; padding-bottom: 12px; }
  .student-tools-page .stw-sidebar strong { display: none; }
  .student-tools-page .stw-sidebar a { flex: 0 0 auto; }
  .student-tools-page .stw-modules { min-height: 0; }
  .student-tools-page .stw-tool-grid { grid-template-columns: 1fr; }
  .student-tools-page .stw-result { border-top: 1px solid var(--sv-line); border-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
  .student-tools-page .stw-module { animation: none; }
}